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US 10,119,223 B2Granted
Carpet and synthetic turf backings prepared from a polyether carbonate polyol
AssigneeCovestro LLC
InventorsAmanda Glaze, Michael S. Robinson, Samuel Torres-Ramos
Life of this patent
Estimating the term…
Abstract
Disclosed are tufted carpet structures, including synthetic turf structures, such as synthetic grass structures, that include a polyurethane backing coating formed from a polyether carbonate polyol.
Claims15
A carpet, comprising:
- (a) rows of fiber bundles;
- (b) a primary backing, wherein the rows of fiber bundles are tufted into the primary backing, and
- (c) a coating deposited over at least a portion of the primary backing and covering the portion of the fiber bundles tufted into the primary backing, wherein the coating comprises a polyurethane that is a reaction product of:
- (1) a polyisocyanate, and
- (2) an isocyanate-reactive composition comprising:
- (i) 10% to 50% by weight, based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition, of a polyether carbonate polyol having incorporated carbon dioxide content, an OH functionality of 2 to 4, and a number average molar mass of 750 to 6000 grams/mole;
- (ii) 20% to 80% by weight, based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition, of a polyether polyol that is not a polyether carbonate polyol and that has a nominal functionality of at least 3 and an average OH number of 20 to 100;
- and
- (iii) 5% to 25% by weight, based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition, of a polyether diol that is not a polyether carbonate diol and has a Mn of at least 1000 grams/mole.
6 more elements
A synthetic grass surface comprising synthetic grass blades having an end extending away from a backing, wherein the backing has deposited on at least one side thereof a coating comprising a polyurethane that is a reaction product of:
- (1) a polyisocyanate, and
- (2) an isocyanate-reactive composition comprising:
- (i) 10% to 50% by weight, based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition, of a polyether carbonate polyol having incorporated carbon dioxide content, an OH functionality of 2 to 4, and a number average molar mass of 750 to 6000 grams/mole;
- (ii) 20% to 80% by weight, based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition, of a polyether polyol that is not a polyether carbonate polyol and that has a nominal functionality of at least 3 and an average OH number of 20 to 100;
- and
- (iii) 5% to 25% by weight, based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition, of a polyether diol that is not a polyether carbonate diol and has a Mr, of at least 1000 grams/mole.
3 more elements
Dependencies are inferred from the claim text.